Stool



FIG. 1 is a front, top perspective view of a stool showing my new design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a left-side, top perspective view thereof,

FIG. 4 is a right-side, top perspective view thereof;

FIG. 5 is a left-side top perspective view thereof;

FIG. 6 is a right-side view thereof; and,

FIG. 7 is a top perspective view thereof. 

CLAIM The ornamental design for a stool, as shown and described. 